72219910 has 32 divisors (see below), whose sum is σ = 157308480. Its totient is φ = 23304192.

The previous prime is 72219899. The next prime is 72219911. The reversal of 72219910 is 1991227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72219911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29155 + ... + 31534.

It is an arithmetic number, because the mean of its divisors is an integer number (4915890).

Almost surely, 2^72219910 is an apocalyptic number.

72219910 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72219910 is an abundant number, since it is smaller than the sum of its proper divisors (85088570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72219910 is a wasteful number, since it uses less digits than its factorization.

72219910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60720.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 72219910 is about 8498.2298156734. The cubic root of 72219910 is about 416.4398815646.

The spelling of 72219910 in words is "seventy-two million, two hundred nineteen thousand, nine hundred ten".